Build me a polished Japanese brand site for zeroz by Otsuka Pharmaceutical that feels scientific, premium, and wellness focused. It should have a dark charcoal background with vivid green accents, clean sans serif typography, sharp corners, and lots of breathing room so it feels editorial and trustworthy rather than flashy. The page should spotlight a strong hero area with the zeroz logo, clear call to action buttons for the online store, and a storytelling layout built around interview style content. Add sections for featured interviews and article cards with athlete and wellness related people, each with a photo, name, role, and short chapter style teaser text. The overall experience should feel calm, credible, and product focused, with easy navigation, subtle dividers, and a modern consumer health look that makes the brand feel established and research backed.

Use this design system for the visuals: https://gitreverse.com/designs/otsuka-air-jp